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      06-11-2011, 06:24 AM   #104
emre
Second Lieutenant
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Drives: G30 540i xDrive
Join Date: May 2010
Location: Istanbul

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Quote:
Originally Posted by ian2002525 View Post
K&N just released the n55 135i and 335i air filter, $53.99
http://www.knfilters.com/search/prod...x?Prod=33-2458
This drop in filter has been available for a while.

I installed it right after I had the Bmw PPK installed, so cannot comment on any gains but I guess no one really expects much gains, if any, from a drop in anyway.

Regarding the sound, under wot almost no change at all, contrary to what I expected.
Only a barely noticeable sound change with partial throttle around 2.000 - 4.000 rpms.

If anyone is thinking to buy it hoping for a better sound, I would recommend not to.
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G30 540i xDrive M Sport